Your Panasonic home theater sounds better connected to direct tv receiver than to HDTV set?

Answer 1

There are a number of reasons why sound from one device may sound different to another. With the information given, there is no way to isolate the cause so here is some general advice on finding the reason.

First, there are numerous setting on a television that adjust the sound characteristics. Some of the settings will compensate for the limitations of the speakers built in to the television. Others may try to simulate a surround sound from the incoming sound source. Either of these may adversely affect the sound when routed through a theater system.

The sound may pass through a route into the television that limits the quality. Try different audio inputs if you can and see how the sound changes.

If the television and the DirectTV receiver use different inputs to the theater system, try swapping them to see if there is a difference. If there is, perhaps the input settings on the theater sound processor may need adjusting.

There are several other settings that might need to be checked but theay will be dependent on the specific set up you have. The best way to resolve it is to study the sound setting menus and try different settings, different sources and swap signals from one input to another. Eventually, the source of the problem will become apparent and then you are one step closer to solving it.